Beam determination prior to beam activation indication

ABSTRACT

Various aspects of the present disclosure generally relate to systems, apparatuses, and methods for beam determination prior to an indication of an activated beam. A user equipment may receive a configuration for one or more transmission configuration indicator (TCI) states; receive downlink control information that schedules a downlink transmission after a time offset; determine, prior to receiving an indication of an activated TCI state of the one or more TCI states, a beam for receiving the downlink transmission; and receive the downlink transmission using the beam. Numerous other aspects are provided.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.16/947,825, filed Aug. 19, 2020, entitled “BEAM DETERMINATION PRIOR TOBEAM ACTIVATION INDICATION”, which claims priority to U.S. ProvisionalPatent Application No. 62/891,114, filed on Aug. 23, 2019, entitled“BEAM DETERMINATION PRIOR TO BEAM ACTIVATION INDICATION,” the contentsof which are incorporated herein by reference in their entireties.

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wirelesscommunication and to techniques and apparatuses for beam determinationprior to an indication of an activated beam.

BACKGROUND

Wireless communication systems are widely deployed to provide varioustelecommunication services such as telephony, video, data, messaging,and broadcasts. Typical wireless communication systems may employmultiple-access technologies capable of supporting communication withmultiple users by sharing available system resources (e.g., bandwidth,transmit power, and/or the like). Examples of such multiple-accesstechnologies include code division multiple access (CDMA) systems, timedivision multiple access (TDMA) systems, frequency-division multipleaccess (FDMA) systems, orthogonal frequency-division multiple access(OFDMA) systems, single-carrier frequency-division multiple access(SC-FDMA) systems, time division synchronous code division multipleaccess (TD-SCDMA) systems, and Long Term Evolution (LTE).LTE/LTE-Advanced is a set of enhancements to the Universal MobileTelecommunications System (UMTS) mobile standard promulgated by theThird Generation Partnership Project (3GPP).

A wireless communication network may include a number of base stations(BSs) that can support communication for a number of user equipment(UEs). A user equipment (UE) may communicate with a base station (BS)via the downlink and uplink. The downlink (or forward link) refers tothe communication link from the BS to the UE, and the uplink (or reverselink) refers to the communication link from the UE to the BS. As will bedescribed in more detail herein, a BS may be referred to as a Node B, agNB, an access point (AP), a radio head, a transmit receive point (TRP),a New Radio (NR) BS, a 5G Node B, and/or the like.

The above multiple access technologies have been adopted in varioustelecommunication standards to provide a common protocol that enablesdifferent user equipment to communicate on a municipal, national,regional, and even global level. New Radio (NR), which may also bereferred to as 5G, is a set of enhancements to the LTE mobile standardpromulgated by the Third Generation Partnership Project (3GPP). NR isdesigned to better support mobile broadband Internet access by improvingspectral efficiency, lowering costs, improving services, making use ofnew spectrum, and better integrating with other open standards usingorthogonal frequency division multiplexing (OFDM) with a cyclic prefix(CP) (CP-OFDM) on the downlink (DL), using CP-OFDM and/or SC-FDM (e.g.,also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) onthe uplink (UL), as well as supporting beamforming, multiple-inputmultiple-output (MIMO) antenna technology, and carrier aggregation.However, as the demand for mobile broadband access continues toincrease, there exists a need for further improvements in LTE and NRtechnologies. Preferably, these improvements should be applicable toother multiple access technologies and the telecommunication standardsthat employ these technologies.

SUMMARY

In some aspects, a method of wireless communication, performed by a UE,may include receiving a configuration for one or more transmissionconfiguration indicator (TCI) states; receiving downlink controlinformation that schedules a downlink transmission after a time offset;determining, prior to receiving an indication of an activated TCI stateof the one or more TCI states, a beam for receiving the downlinktransmission; and receiving the downlink transmission using the beam.

In some aspects, a method of wireless communication, performed by a basestation, may include transmitting, to a UE, a configuration for one ormore TCI states; transmitting, to the UE, downlink control informationthat schedules a downlink transmission after a time offset; determining,prior to transmitting an indication of an activated TCI state of the oneor more TCI states to the UE, a beam for transmitting the downlinktransmission; and transmitting, to the UE, the downlink transmissionusing the beam.

In some aspects, a UE for wireless communication may include memory andone or more processors operatively coupled to the memory. The memory andthe one or more processors may be configured to receive a configurationfor one or more TCI states; receive downlink control information thatschedules a downlink transmission after a time offset; determine, priorto receiving an indication of an activated TCI state of the one or moreTCI states, a beam for receiving the downlink transmission; and receivethe downlink transmission using the beam.

In some aspects, a base station for wireless communication may includememory and one or more processors operatively coupled to the memory. Thememory and the one or more processors may be configured to transmit, toa UE, a configuration for one or more TCI states; transmit, to the UE,downlink control information that schedules a downlink transmissionafter a time offset; determine, prior to transmitting an indication ofan activated TCI state of the one or more TCI states to the UE, a beamfor transmitting the downlink transmission; and transmit, to the UE, thedownlink transmission using the beam.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a base station,may cause the one or more processors to receive a configuration for oneor more TCI states; receive downlink control information that schedulesa downlink transmission after a time offset; determine, prior toreceiving an indication of an activated TCI state of the one or more TCIstates, a beam for receiving the downlink transmission; and receive thedownlink transmission using the beam.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a base station,may cause the one or more processors to transmit, to a UE, aconfiguration for one or more TCI states; transmit, to the UE, downlinkcontrol information that schedules a downlink transmission after a timeoffset; determine, prior to transmitting an indication of an activatedTCI state of the one or more TCI states to the UE, a beam fortransmitting the downlink transmission; and transmit, to the UE, thedownlink transmission using the beam.

In some aspects, an apparatus for wireless communication may includemeans for receiving a configuration for one or more TCI states; meansfor receiving downlink control information that schedules a downlinktransmission after a time offset; means for determining, prior toreceiving an indication of an activated TCI state of the one or more TCIstates, a beam for receiving the downlink transmission; and means forreceiving the downlink transmission using the beam.

In some aspects, an apparatus for wireless communication may includemeans for transmitting, to a UE, a configuration for one or more TCIstates; means for transmitting, to the UE, downlink control informationthat schedules a downlink transmission after a time offset; means fordetermining, prior to transmitting an indication of an activated TCIstate of the one or more TCI states to the UE, a beam for transmittingthe downlink transmission; and means for transmitting, to the UE, thedownlink transmission using the beam.

In some aspects, a method of wireless communication, performed by a userequipment (UE), may include determining respectivesignal-to-interference-plus-noise ratio (SINR) measurements for a groupof beams; and transmitting a measurement report for the group of beamsthat identifies the respective SINR measurements.

In some aspects, a method of wireless communication, performed by a userequipment (UE), may include receiving a configuration for first non-zeropower (NZP) channel state information (CSI) resource sets that are to beused for channel measurement, second NZP CSI resource sets that are tobe used for interference measurement, and zero power (ZP) CSI resourcesets that are to be used for interference measurement; receiving thefirst NZP CSI in a resource set, of a particular index location, of thefirst NZP CSI resource sets using a beam selected according to aquasi-colocation assumption associated with the particular indexlocation; receiving the second NZP CSI in a resource set, of theparticular index location, of the second NZP CSI resource sets using thebeam; and receiving the ZP CSI in a resource set, of the particularindex location, of the ZP CSI resource sets using the beam.

In some aspects, a UE for wireless communication may include memory andone or more processors operatively coupled to the memory. The memory andthe one or more processors may be configured to determine respectivesignal-to-interference-plus-noise ratio (SINR) measurements for a groupof beams; and transmit a measurement report for the group of beams thatidentifies the respective SINR measurements.

In some aspects, a UE for wireless communication may include memory andone or more processors operatively coupled to the memory. The memory andthe one or more processors may be configured to receive a configurationfor first non-zero power (NZP) channel state information (CSI) resourcesets that are to be used for channel measurement, second NZP CSIresource sets that are to be used for interference measurement, and zeropower (ZP) CSI resource sets that are to be used for interferencemeasurement; receive the first NZP CSI in a resource set, of aparticular index location, of the first NZP CSI resource sets using abeam selected according to a quasi-colocation assumption associated withthe particular index location; receive the second NZP CSI in a resourceset, of the particular index location, of the second NZP CSI resourcesets using the beam; and receive the ZP CSI in a resource set, of theparticular index location, of the ZP CSI resource sets using the beam.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a UE, may causethe one or more processors to: determine respectivesignal-to-interference-plus-noise ratio (SINR) measurements for a groupof beams; and transmit a measurement report for the group of beams thatidentifies the respective SINR measurements.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a UE, may causethe one or more processors to: receive a configuration for firstnon-zero power (NZP) channel state information (CSI) resource sets thatare to be used for channel measurement, second NZP CSI resource setsthat are to be used for interference measurement, and zero power (ZP)CSI resource sets that are to be used for interference measurement;receive the first NZP CSI in a resource set, of a particular indexlocation, of the first NZP CSI resource sets using a beam selectedaccording to a quasi-colocation assumption associated with theparticular index location; receive the second NZP CSI in a resource set,of the particular index location, of the second NZP CSI resource setsusing the beam; and receive the ZP CSI in a resource set, of theparticular index location, of the ZP CSI resource sets using the beam.

In some aspects, an apparatus for wireless communication may includemeans for determining respective signal-to-interference-plus-noise ratio(SINR) measurements for a group of beams; and means for transmitting ameasurement report for the group of beams that identifies the respectiveSINR measurements.

In some aspects, an apparatus for wireless communication may includemeans for receiving a configuration for first non-zero power (NZP)channel state information (CSI) resource sets that are to be used forchannel measurement, second NZP CSI resource sets that are to be usedfor interference measurement, and zero power (ZP) CSI resource sets thatare to be used for interference measurement; means for receiving thefirst NZP CSI in a resource set, of a particular index location, of thefirst NZP CSI resource sets using a beam selected according to aquasi-colocation assumption associated with the particular indexlocation; means for receiving the second NZP CSI in a resource set, ofthe particular index location, of the second NZP CSI resource sets usingthe beam; and means for receiving the ZP CSI in a resource set, of theparticular index location, of the ZP CSI resource sets using the beam.

Aspects generally include a method, apparatus, system, computer programproduct, non-transitory computer-readable medium, user equipment, basestation, wireless communication device, and/or processing system assubstantially described herein with reference to and as illustrated bythe accompanying drawings and specification.

The foregoing has outlined rather broadly the features and technicaladvantages of examples according to the disclosure in order that thedetailed description that follows may be better understood. Additionalfeatures and advantages will be described hereinafter. The conceptionand specific examples disclosed may be readily utilized as a basis formodifying or designing other structures for carrying out the samepurposes of the present disclosure. Such equivalent constructions do notdepart from the scope of the appended claims. Characteristics of theconcepts disclosed herein, both their organization and method ofoperation, together with associated advantages will be better understoodfrom the following description when considered in connection with theaccompanying figures. Each of the figures is provided for the purposesof illustration and description, and not as a definition of the limitsof the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

So that the above-recited features of the present disclosure can beunderstood in detail, a more particular description, briefly summarizedabove, may be had by reference to aspects, some of which are illustratedin the appended drawings. It is to be noted, however, that the appendeddrawings illustrate only certain typical aspects of this disclosure andare therefore not to be considered limiting of its scope, for thedescription may admit to other equally effective aspects. The samereference numbers in different drawings may identify the same or similarelements.

FIG. 1 is a block diagram illustrating an example of a wirelesscommunication network, in accordance with various aspects of the presentdisclosure.

FIG. 2 is a block diagram illustrating an example of a base station incommunication with a UE in a wireless communication network, inaccordance with various aspects of the present disclosure.

FIG. 3 is a diagram illustrating an example of determining a beam priorto an indication of an activated beam, in accordance with variousaspects of the present disclosure.

FIG. 4 is a diagram illustrating an example process performed, forexample, by a UE, in accordance with various aspects of the presentdisclosure.

FIG. 5 is a diagram illustrating an example process performed, forexample, by a base station, in accordance with various aspects of thepresent disclosure.

FIG. 6 is a conceptual data flow diagram illustrating an example of adata flow between different modules/means/components in an exampleapparatus.

FIG. 7 is a diagram illustrating an example of a hardware implementationfor an apparatus employing a processing system.

FIG. 8 is a conceptual data flow diagram illustrating an example of adata flow between different modules/means/components in an exampleapparatus.

FIG. 9 is a diagram illustrating an example of a hardware implementationfor an apparatus employing a processing system.

FIG. 10 is a diagram illustrating an example of beam group measurementreporting, in accordance with various aspects of the present disclosure.

FIG. 11 is a diagram illustrating an example process performed, forexample, by a UE, in accordance with various aspects of the presentdisclosure.

FIG. 12 is a block diagram of an example apparatus for wirelesscommunication.

FIG. 13 is a diagram illustrating an example of a hardwareimplementation for an apparatus employing a processing system.

FIG. 14 is a diagram illustrating an example of receiving channel stateinformation (CSI) in resource sets, in accordance with various aspectsof the present disclosure.

DETAILED DESCRIPTION

Various aspects of the disclosure are described more fully hereinafterwith reference to the accompanying drawings. This disclosure may,however, be embodied in many different forms and should not be construedas limited to any specific structure or function presented throughoutthis disclosure. Rather, these aspects are provided so that thisdisclosure will be thorough and complete, and will fully convey thescope of the disclosure to those skilled in the art. Based on theteachings herein one skilled in the art should appreciate that the scopeof the disclosure is intended to cover any aspect of the disclosuredisclosed herein, whether implemented independently of or combined withany other aspect of the disclosure. For example, an apparatus may beimplemented or a method may be practiced using any number of the aspectsset forth herein. In addition, the scope of the disclosure is intendedto cover such an apparatus or method which is practiced using otherstructure, functionality, or structure and functionality in addition toor other than the various aspects of the disclosure set forth herein. Itshould be understood that any aspect of the disclosure disclosed hereinmay be embodied by one or more elements of a claim.

Several aspects of telecommunication systems will now be presented withreference to various apparatuses and techniques. These apparatuses andtechniques will be described in the following detailed description andillustrated in the accompanying drawings by various blocks, modules,components, circuits, steps, processes, algorithms, and/or the like(collectively referred to as “elements”). These elements may beimplemented using hardware, software, or combinations thereof. Whethersuch elements are implemented as hardware or software depends upon theparticular application and design constraints imposed on the overallsystem.

FIG. 1 is a diagram illustrating a wireless network 100 in which aspectsof the present disclosure may be practiced. The wireless network 100 maybe an LTE network or some other wireless network, such as a 5G or NRnetwork. The wireless network 100 may include a number of BSs 110 (shownas BS 110 a, BS 110 b, BS 110 c, and BS 110 d) and other networkentities. ABS is an entity that communicates with user equipment (UEs)and may also be referred to as a base station, a NR BS, a Node B, a gNB,a 5G node B (NB), an access point, a transmit receive point (TRP),and/or the like. Each BS may provide communication coverage for aparticular geographic area. In 3GPP, the term “cell” can refer to acoverage area of a BS and/or a BS subsystem serving this coverage area,depending on the context in which the term is used.

A BS may provide communication coverage for a macro cell, a pico cell, afemto cell, and/or another type of cell. A macro cell may cover arelatively large geographic area (e.g., several kilometers in radius)and may allow unrestricted access by UEs with service subscription. Apico cell may cover a relatively small geographic area and may allowunrestricted access by UEs with service subscription. A femto cell maycover a relatively small geographic area (e.g., a home) and may allowrestricted access by UEs having association with the femto cell (e.g.,UEs in a closed subscriber group (CSG)). ABS for a macro cell may bereferred to as a macro BS. ABS for a pico cell may be referred to as apico BS. A BS for a femto cell may be referred to as a femto BS or ahome BS. In the example shown in FIG. 1 , a BS 110 a may be a macro BSfor a macro cell 102 a, a BS 110 b may be a pico BS for a pico cell 102b, and a BS 110 c may be a femto BS for a femto cell 102 c. A BS maysupport one or multiple (e.g., three) cells. The terms “eNB”, “basestation”, “NR BS”, “gNB”, “TRP”, “AP”, “node B”, “5G NB”, and “cell” maybe used interchangeably herein.

In some aspects, a cell may not necessarily be stationary, and thegeographic area of the cell may move according to the location of amobile BS. In some aspects, the BSs may be interconnected to one anotherand/or to one or more other BSs or network nodes (not shown) in thewireless network 100 through various types of backhaul interfaces suchas a direct physical connection, a virtual network, and/or the likeusing any suitable transport network.

Wireless network 100 may also include relay stations. A relay station isan entity that can receive a transmission of data from an upstreamstation (e.g., a BS or a UE) and send a transmission of the data to adownstream station (e.g., a UE or a BS). A relay station may also be aUE that can relay transmissions for other UEs. In the example shown inFIG. 1 , a relay station 110 d may communicate with macro BS 110 a and aUE 120 d in order to facilitate communication between BS 110 a and UE120 d. A relay station may also be referred to as a relay BS, a relaybase station, a relay, and/or the like.

Wireless network 100 may be a heterogeneous network that includes BSs ofdifferent types, e.g., macro BSs, pico BSs, femto BSs, relay BSs, and/orthe like. These different types of BSs may have different transmit powerlevels, different coverage areas, and different impacts on interferencein wireless network 100. For example, macro BSs may have a high transmitpower level (e.g., 5 to 40 watts) whereas pico BSs, femto BSs, and relayBSs may have lower transmit power levels (e.g., 0.1 to 2 watts).

A network controller 130 may couple to a set of BSs and may providecoordination and control for these BSs. Network controller 130 maycommunicate with the BSs via a backhaul. The BSs may also communicatewith one another, e.g., directly or indirectly via a wireless orwireline backhaul.

UEs 120 (e.g., 120 a, 120 b, 120 c) may be dispersed throughout wirelessnetwork 100, and each UE may be stationary or mobile. A UE may also bereferred to as an access terminal, a terminal, a mobile station, asubscriber unit, a station, and/or the like. A UE may be a cellularphone (e.g., a smart phone), a personal digital assistant (PDA), awireless modem, a wireless communication device, a handheld device, alaptop computer, a cordless phone, a wireless local loop (WLL) station,a tablet, a camera, a gaming device, a netbook, a smartbook, anultrabook, a medical device or equipment, biometric sensors/devices,wearable devices (smart watches, smart clothing, smart glasses, smartwrist bands, smart jewelry (e.g., smart ring, smart bracelet)), anentertainment device (e.g., a music or video device, or a satelliteradio), a vehicular component or sensor, smart meters/sensors,industrial manufacturing equipment, a global positioning system device,or any other suitable device that is configured to communicate via awireless or wired medium.

Some UEs may be considered machine-type communication (MTC) or evolvedor enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEsinclude, for example, robots, drones, remote devices, sensors, meters,monitors, location tags, and/or the like, that may communicate with abase station, another device (e.g., remote device), or some otherentity. A wireless node may provide, for example, connectivity for or toa network (e.g., a wide area network such as Internet or a cellularnetwork) via a wired or wireless communication link. Some UEs may beconsidered Internet-of-Things (IoT) devices, and/or may be implementedas NB-IoT (narrowband internet of things) devices. Some UEs may beconsidered a Customer Premises Equipment (CPE). UE 120 may be includedinside a housing that houses components of UE 120, such as processorcomponents, memory components, and/or the like.

In general, any number of wireless networks may be deployed in a givengeographic area. Each wireless network may support a particular RAT andmay operate on one or more frequencies. A RAT may also be referred to asa radio technology, an air interface, and/or the like. A frequency mayalso be referred to as a carrier, a frequency channel, and/or the like.Each frequency may support a single RAT in a given geographic area inorder to avoid interference between wireless networks of different RATs.In some cases, NR or 5G RAT networks may be deployed.

In some aspects, two or more UEs 120 (e.g., shown as UE 120 a and UE 120e) may communicate directly using one or more sidelink channels (e.g.,without using a base station 110 as an intermediary to communicate withone another). For example, the UEs 120 may communicate usingpeer-to-peer (P2P) communications, device-to-device (D2D)communications, a vehicle-to-everything (V2X) protocol (e.g., which mayinclude a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure(V2I) protocol, and/or the like), a mesh network, and/or the like. Inthis case, the UE 120 may perform scheduling operations, resourceselection operations, and/or other operations described elsewhere hereinas being performed by the base station 110.

As indicated above, FIG. 1 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 1 .

FIG. 2 shows a block diagram of a design 200 of base station 110 and UE120, which may be one of the base stations and one of the UEs in FIG. 1. Base station 110 may be equipped with T antennas 234 a through 234 t,and UE 120 may be equipped with R antennas 252 a through 252 r, where ingeneral T≥1 and R≥1.

At base station 110, a transmit processor 220 may receive data from adata source 212 for one or more UEs, select one or more modulation andcoding schemes (MCS) for each UE based at least in part on channelquality indicators (CQIs) received from the UE, process (e.g., encodeand modulate) the data for each UE based at least in part on the MCS(s)selected for the UE, and provide data symbols for all UEs. Transmitprocessor 220 may also process system information (e.g., for semi-staticresource partitioning information (SRPI) and/or the like) and controlinformation (e.g., CQI requests, grants, upper layer signaling, and/orthe like) and provide overhead symbols and control symbols. Transmitprocessor 220 may also generate reference symbols for reference signals(e.g., the cell-specific reference signal (CRS)) and synchronizationsignals (e.g., the primary synchronization signal (PSS) and secondarysynchronization signal (SSS)). A transmit (TX) multiple-inputmultiple-output (MIMO) processor 230 may perform spatial processing(e.g., precoding) on the data symbols, the control symbols, the overheadsymbols, and/or the reference symbols, if applicable, and may provide Toutput symbol streams to T modulators (MODs) 232 a through 232 t. Eachmodulator 232 may process a respective output symbol stream (e.g., forOFDM and/or the like) to obtain an output sample stream. Each modulator232 may further process (e.g., convert to analog, amplify, filter, andupconvert) the output sample stream to obtain a downlink signal. Tdownlink signals from modulators 232 a through 232 t may be transmittedvia T antennas 234 a through 234 t, respectively. According to variousaspects described in more detail below, the synchronization signals canbe generated with location encoding to convey additional information.

At UE 120, antennas 252 a through 252 r may receive the downlink signalsfrom base station 110 and/or other base stations and may providereceived signals to demodulators (DEMODs) 254 a through 254 r,respectively. Each demodulator 254 may condition (e.g., filter, amplify,downconvert, and digitize) a received signal to obtain input samples.Each demodulator 254 may further process the input samples (e.g., forOFDM and/or the like) to obtain received symbols. A MIMO detector 256may obtain received symbols from all R demodulators 254 a through 254 r,perform MIMO detection on the received symbols if applicable, andprovide detected symbols. A receive processor 258 may process (e.g.,demodulate and decode) the detected symbols, provide decoded data for UE120 to a data sink 260, and provide decoded control information andsystem information to a controller/processor 280. A channel processormay determine reference signal received power (RSRP), received signalstrength indicator (RSSI), reference signal received quality (RSRQ),channel quality indicator (CQI), and/or the like. In some aspects, oneor more components of UE 120 may be included in a housing.

On the uplink, at UE 120, a transmit processor 264 may receive andprocess data from a data source 262 and control information (e.g., forreports comprising RSRP, RSSI, RSRQ, CQI, and/or the like) fromcontroller/processor 280. Transmit processor 264 may also generatereference symbols for one or more reference signals. The symbols fromtransmit processor 264 may be precoded by a TX MIMO processor 266 ifapplicable, further processed by modulators 254 a through 254 r (e.g.,for DFT-s-OFDM, CP-OFDM, and/or the like), and transmitted to basestation 110. At base station 110, the uplink signals from UE 120 andother UEs may be received by antennas 234, processed by demodulators232, detected by a MIMO detector 236 if applicable, and furtherprocessed by a receive processor 238 to obtain decoded data and controlinformation sent by UE 120. Receive processor 238 may provide thedecoded data to a data sink 239 and the decoded control information tocontroller/processor 240. Base station 110 may include communicationunit 244 and communicate to network controller 130 via communicationunit 244. Network controller 130 may include communication unit 294,controller/processor 290, and memory 292.

Controller/processor 240 of base station 110, controller/processor 280of UE 120, and/or any other component(s) of FIG. 2 may perform one ormore techniques associated with beam determination prior to anindication of an activated beam, as described in more detail elsewhereherein. For example, controller/processor 240 of base station 110,controller/processor 280 of UE 120, and/or any other component(s) ofFIG. 2 may perform or direct operations of, for example, process 400 ofFIG. 4 , process 500 of FIG. 5 , and/or other processes as describedherein. Memories 242 and 282 may store data and program codes for basestation 110 and UE 120, respectively. In some aspects, memory 242 and/ormemory 282 may comprise a non-transitory computer-readable mediumstoring one or more instructions for wireless communication. Forexample, the one or more instructions, when executed by one or moreprocessors of the base station 110 and/or the UE 120, may perform ordirect operations of, for example, process 400 of FIG. 4 , process 500of FIG. 5 , and/or other processes as described herein. A scheduler 246may schedule UEs for data transmission on the downlink and/or uplink.

In some aspects, UE 120 may include means for receiving (e.g., usingantenna 252, DEMOD 254, MIMO detector 256, receive processor 258,controller/processor 280, reception module 604, and/or the like) aconfiguration for one or more TCI states, means for receiving (e.g.,using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258,controller/processor 280, reception module 604, and/or the like)downlink control information that schedules a downlink transmissionafter a time offset, means for determining (e.g., using receiveprocessor 258, transmit processor 264, controller/processor 280, memory282, determination module 606, and/or the like), prior to receiving anindication of an activated TCI state of the one or more TCI states, abeam for receiving the downlink transmission, means for receiving (e.g.,using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258,controller/processor 280, reception module 604, and/or the like) thedownlink transmission using the beam, and/or the like. In some aspects,UE 120 may include means for determining (e.g., using receive processor258, transmit processor 264, controller/processor 280, memory 282,determination component 1208, and/or the like) respectivesignal-to-interference-plus-noise ratio (SINR) measurements for a groupof beams, means for transmitting (e.g., using controller/processor 280,transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252,transmission component 1204, and/or the like) a measurement report forthe group of beams that identifies the respective SINR measurements,and/or the like. In some aspects, such means may include one or morecomponents of UE 120 described in connection with FIG. 2 , such ascontroller/processor 280, transmit processor 264, TX MIMO processor 266,MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor258, and/or the like.

In some aspects, base station 110 may include means for transmitting(e.g., using controller/processor 240, transmit processor 220, TX MIMOprocessor 230, MOD 232, antenna 234, transmission module 804, and/or thelike) a configuration for one or more TCI states, means for transmitting(e.g., using controller/processor 240, transmit processor 220, TX MIMOprocessor 230, MOD 232, antenna 234, transmission module 804, and/or thelike) downlink control information that schedules a downlinktransmission after a time offset, means for determining (e.g., usingtransmit processor 220, receive processor 238, controller/processor 240,memory 242, determination module 806, and/or the like), prior totransmitting an indication of an activated TCI state of the one or moreTCI states, a beam for transmitting the downlink transmission, means fortransmitting (e.g., using controller/processor 240, transmit processor220, TX MIMO processor 230, MOD 232, antenna 234, transmission module804, and/or the like) the downlink transmission using the beam, and/orthe like. In some aspects, such means may include one or more componentsof base station 110 described in connection with FIG. 2 , such asantenna 234, DEMOD 232, MIMO detector 236, receive processor 238,controller/processor 240, transmit processor 220, TX MIMO processor 230,MOD 232, antenna 234, and/or the like.

As indicated above, FIG. 2 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 2 .

In 5G and other types of radio access technologies (RATs), beamformingmay be used for communications between a UE and a base station, such asfor millimeter wave communications and/or the like. In such a case, thebase station may provide the UE with a configuration of TCI states thatrespectively indicate beams that may be used by the UE, such as forreceiving a physical downlink shared channel (PDSCH). The base stationmay indicate an activated TCI state to the UE (e.g., via a medium accesscontrol-control element (MAC-CE)), which the UE may use to select a beamfor receiving the PDSCH. However, in some cases, downlink controlinformation (DCI) may schedule a PDSCH prior to activation of a TCIstate for the PDSCH.

Some apparatuses and techniques described herein facilitate selection ofa beam for receiving a PDSCH prior to activation of a TCI state for thePDSCH. For example, a UE may determine a beam that is to be used toreceive a PDSCH, prior to activation of a TCI state for the PDSCH,according to a selected beam used to receive synchronization signalblocks (SSBs) in an initial access procedure or according to a selectedbeam used to monitor a control resource set (CORESET). In some aspects,the UE may determine the beam according to a time offset betweenreceiving DCI that schedules a PDSCH and receiving the PDSCH and/oraccording to whether the control information is configured to identify aTCI state.

FIG. 3 is a diagram illustrating an example 300 of determining a beamprior to an indication of an activated beam, in accordance with variousaspects of the present disclosure. For example, as shown in FIG. 3 , aBS 110 and a UE 120 may communicate using beams determined prior toactivation of a TCI state. In some aspects, communications between theBS 110 and the UE 120 may occur after an initial access procedureperformed by the BS 110 and the UE 120. For example, the BS 110 maytransmit, and the UE 120 may receive, one or more SSBs as part of theinitial access procedure. In some aspects, the BS 110 may transmit theSSBs using a beam previously selected by the BS 110, and the UE 120 mayreceive the SSBs using a beam previously selected by the UE 120.

As shown in FIG. 3 , and by reference number 310, the BS 110 maytransmit, and the UE 120 may receive, a configuration (e.g., ahigher-layer configuration) that identifies one or more TCI states. Forexample, the BS 110 may transmit the configuration via radio resourcecontrol (RRC) signaling or a MAC-CE.

As shown by reference number 320, the BS 110 may transmit, and the UE120 may receive, control information (e.g., DCI) that schedules adownlink transmission carried in a PDSCH. In some aspects, the controlinformation may schedule the downlink transmission after a time offset.The time offset may be an interval between a first time when the controlinformation is received by the UE 120 and a second time when the PDSCHis scheduled.

The UE 120 may receive the control information in a CORESET monitored bythe UE 120. For example, the UE 120 may have monitored the CORESET usinga beam previously selected by the UE 120. Similarly, the BS 110 may havetransmitted the control information in the CORESET using a beampreviously selected by the BS 110. In some aspects, the CORESET may beincluded in a plurality of CORESETs of a search space monitored by theUE 120 (e.g., using respective beams).

In some aspects, a tci-PresentInDCI field may not be configured for theCORESET (e.g., the tci-PresentInDCI field is disabled). That is, TCIindication in control information is not configured for the CORESET. Insuch a case, the control information may not identify a TCI state of theone or more TCI states configured for the UE 120. In some aspects, thetci-PresentInDCI field may be enabled for the CORESET. That is, TCIindication in control information is enabled for the CORESET. In such acase, the control information may identify a TCI state of the one ormore TCI states configured for the UE 120.

As shown by reference number 330, the UE 120 may determine a beam thatis to be used to receive the downlink transmission carried in the PDSCH.The UE 120 may determine the beam prior to receiving an indication(e.g., an activation command) from the B S 110 of an activated TCI stateof the one or more TCI states configured for the UE 120 (e.g., prior toreceiving an indication of a beam that is to be used to receive thePDSCH). The UE 120 may determine the beam based at least in part on thetime offset associated with the control information and/or thetci-PresentInDCI configuration (e.g., enabled or not enabled) of theCORESET.

In some aspects, the time offset satisfies a threshold value (e.g., thetime offset is greater than or equal to the threshold value) and thetci-PresentInDCI field is not configured for the CORESET (e.g., thecontrol information may not identify a TCI state). In such a case, theUE 120 may determine a beam, for the PDSCH, that corresponds to a beamselected by the UE 120 for receiving SSBs from the BS 110 as part of theinitial access procedure. For example, the determined beam may bequasi-co-located with the beam used to receive SSBs in the initialaccess procedure. That is, the beam may be determined based at least inpart on a quasi-co-location (QCL) assumption that follows the SSBs inthe initial access procedure (e.g., demodulation reference signal portsfor the PDSCH are quasi-co-located with the SSBs). Additionally, inaspects in which the time offset satisfies the threshold value and thetci-PresentInDCI field is not configured for the CORESET, the UE 120 maydetermine a beam, for the PDSCH, that corresponds to a beam selected bythe UE 120 for monitoring the CORESET (i.e., the CORESET that carriedthe control information). For example, the determined beam may bequasi-co-located with the beam used to monitor the CORESET. That is, thebeam may be determined based at least in part on a QCL assumption thatfollows the CORESET. In some aspects, the threshold value may beassociated with a beam switching latency of the UE 120 (e.g., thethreshold value may be a time duration for QCL (timeDurationForQCL)).

In some aspects, the UE 120 may have a configuration, for when the timeoffset satisfies the threshold value and the tci-PresentInDCI field isnot configured for the CORESET, that identifies whether the UE 120 is todetermine a beam according to the initial access procedure or accordingto the CORESET. In this way, when the time offset satisfies thethreshold value and the tci-PresentInDCI field is not configured for theCORESET, the UE 120 may determine the beam in a consistent manner thatenables the BS 110 to infer the beam determined by the UE 120.

In some aspects, the time offset may satisfy the threshold value and thetci-PresentInDCI field may be enabled for the CORESET (e.g., the controlinformation may identify a TCI state). In such a case, the UE 120 maydetermine a beam, for the PDSCH, that corresponds to a beam selected bythe UE 120 for receiving SSBs from the BS 110 as part of the initialaccess procedure, or that corresponds to a beam selected by the UE 120for monitoring the CORESET, as described above.

In some aspects, the UE 120 may have a configuration, for when the timeoffset satisfies the threshold value and the tci-PresentInDCI field isenabled for the CORESET, that identifies whether the UE 120 is todetermine a beam according to the initial access procedure or accordingto the CORESET. In this way, when the time offset satisfies thethreshold value and the tci-PresentInDCI field is enabled, the UE 120may determine the beam in a consistent manner that enables the BS 110 toinfer the beam determined by the UE 120.

In some aspects, the time offset does not satisfy the threshold value(e.g., the time offset is less than the threshold value). In such acase, the UE 120 may determine a beam, for the PDSCH, that correspondsto a beam selected by the UE 120 for receiving SSBs from the BS 110 aspart of the initial access procedure, as described above. Additionally,in aspects in which the time offset does not satisfy the thresholdvalue, the UE 120 may determine a beam, for the PDSCH, that correspondsto a beam selected by the UE 120 to monitor a CORESET having a lowestidentifier among identifiers of a plurality of CORESETs monitored by theUE 120 (e.g., a search space monitored by the UE 120). For example, thedetermined beam may be quasi-co-located with the beam used to monitorthe CORESET having the lowest identifier. That is, the beam may bedetermined based at least in part on a QCL assumption that follows theCORESET having the lowest identifier. The plurality of CORESETs may beassociated with an interval (e.g., a slot) most recently monitored bythe UE 120 (e.g., prior to determining the beam).

In some aspects, the UE 120 may have a configuration, for when the timeoffset does not satisfy the threshold value, that identifies whether theUE 120 is to determine a beam according to the initial access procedureor according to the CORESET having the lowest identifier. In this way,when the time offset does not satisfy the threshold value, the UE 120may determine the beam in a consistent manner that enables the BS 110 toinfer the beam determined by the UE 120.

As shown by reference number 340, the BS 110 may determine a beam thatis to be used to transmit the downlink transmission carried in thePDSCH. The BS 110 may determine the beam prior to transmitting anindication to the UE 120 of an activated TCI state of the one or moreTCI states configured for the UE 120. The BS 110 may determine the beambased at least in part on the time offset associated with the controlinformation and/or the tci-PresentInDCI configuration of the CORESET, asdescribed above.

For example, when the time offset satisfies the threshold value and thetci-PresentInDCI field is not configured for the CORESET, the BS 110 maydetermine a beam that corresponds to one of a beam selected by the BS110 for transmitting SSBs in the initial access procedure or a beamselected by the BS 110 for transmitting the control information in theCORESET. As another example, when the time offset satisfies thethreshold value and the tci-PresentInDCI field is enabled for theCORESET, the BS 110 may determine a beam that corresponds to one of abeam selected by the BS 110 for transmitting SSBs in the initial accessprocedure or a beam selected by the BS 110 for transmitting the controlinformation in the CORESET. As a further example, when the time offsetdoes not satisfy the threshold value, the BS 110 may determine a beamthat corresponds to one of a beam selected by the BS 110 fortransmitting SSBs in the initial access procedure or a beam selected bythe BS 110 and associated with a CORESET having a lowest identifieramong identifiers of a plurality of CORESETs monitored by the UE 120, asdescribed above.

In each example above, the BS 110 may be configured to determine a beamin a manner corresponding to that configured for the UE 120, asdescribed above. For example, when the time offset does not satisfy thethreshold value, if the UE 120 is configured to determine a beam thatcorresponds to a beam used to receive SSBs in an initial accessprocedure, the BS 110 may determine a beam that corresponds to a beamused to transmit SSBs in the initial access procedure.

As shown by reference number 350, the BS 110 may transmit, and the UE120 may receive, the downlink transmission in the PDSCH. For example,the BS 110 may transmit the downlink transmission using the beamdetermined by the BS 110 and the UE 120 may receive the downlinktransmission using the beam determined by the UE 120. In this way, theBS 110 may transmit, and the UE 120 may receive, the downlinktransmission prior to activation of a TCI state for the PDSCH.

As shown by reference number 360, the BS 110 may transmit, and the UE120 may receive, an indication (e.g., an activation command) of anactivated TCI state of the one or more TCI states configured for the UE120. The BS 110 may transmit the indication via a MAC-CE. In someaspects, the BS 110 may transmit the indication of the activated TCIstate without regard to whether the tci-PresentInDCI field is enabled ornot enabled for the CORESET. For example, the BS 110 may transmit theindication in a case in which the tci-PresentInDCI field is notconfigured for the CORESET, and may transmit the indication in a case inwhich the tci-PresentInDCI field is enabled for the CORESET.

In some aspects, the BS 110 may transmit the indication with (e.g.,simultaneously with or near-simultaneously with) an indication (e.g., anactivation command) of an activated TCI state for a physical downlinkcontrol channel (PDCCH) monitored by the UE 120. The activated TCI stateindicated for the PDSCH may correspond (e.g., may be identical) to theactivated TCI state indicated for the PDCCH.

In some aspects, upon activation of a TCI state for the PDSCH, the UE120 may determine, and use, a beam that corresponds to a beam selectedby the UE 120 for monitoring the CORESET, as described above, if, priorto activation of the TCI state, the UE 120 determined a beamcorresponding to a beam selected by the UE 120 for receiving SSBs in aninitial access procedure. For example, when the time offset satisfiesthe threshold value and the tci-PresentInDCI field is not configured forthe CORESET, the UE 120 may determine, and use, the beam thatcorresponds to a beam selected by the UE 120 for monitoring the CORESET.Moreover, upon activation of a TCI state for the PDSCH, the BS 110 maysimilarly determine, and use, a beam that corresponds to a beam selectedby the BS 110 for transmitting the control information in the CORESET.

In some aspects, upon activation of a TCI state for the PDSCH, the UE120 may determine, and use, a beam that corresponds to a beam selectedby the UE 120 for monitoring the CORESET having the lowest identifier,as described above, if, prior to activation of the TCI state, the UE 120determined a beam corresponding to a beam selected by the UE 120 forreceiving SSBs in an initial access procedure. For example, when thetime offset does not satisfy the threshold value, the UE 120 maydetermine, and use, the beam that corresponds to a beam selected by theUE 120 for monitoring the CORESET having the lowest identifier.Moreover, upon activation of a TCI state for the PDSCH, the BS 110 maysimilarly determine, and use, a beam that corresponds to a beam selectedby the BS 110 and associated with the CORESET having the lowestidentifier.

As indicated above, FIG. 3 is provided as an example. Other examples maydiffer from what is described with respect to FIG. 3 .

FIG. 4 is a diagram illustrating an example process 400 performed, forexample, by a UE, in accordance with various aspects of the presentdisclosure. Example process 400 is an example where a UE (e.g., UE 120and/or the like) performs operations associated with beam determinationprior to an indication of an activated beam.

As shown in FIG. 4 , in some aspects, process 400 may include receivinga configuration for one or more TCI states (block 410). For example, theUE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receiveprocessor 258, controller/processor 280, reception module 604, and/orthe like) may receive a configuration for one or more TCI states, asdescribed above in connection with FIG. 3 .

As further shown in FIG. 4 , in some aspects, process 400 may includereceiving downlink control information that schedules a downlinktransmission after a time offset (block 420). For example, the UE (e.g.,using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258,controller/processor 280, reception module 604, and/or the like) mayreceive downlink control information that schedules a downlinktransmission after a time offset, as described above in connection withFIG. 3 . In a first aspect, the downlink transmission is carried in aphysical downlink shared channel for data. In a second aspect, alone orin combination with the first aspect, the time offset is an intervalbetween a first time when the downlink control information thatschedules the downlink transmission is received and a second time whenthe downlink transmission is scheduled.

As further shown in FIG. 4 , in some aspects, process 400 may includedetermining, prior to receiving an indication of an activated TCI stateof the one or more TCI states, a beam for receiving the downlinktransmission (block 430). For example, the UE (e.g., usingcontroller/processor 280 and/or the like) may determine, prior toreceiving an indication of an activated TCI state of the one or more TCIstates, a beam for receiving the downlink transmission, as describedabove in connection with FIG. 3 .

In a third aspect, alone or in combination with one or more of the firstand second aspects, the time offset is greater than a threshold valueand the downlink control information that schedules the downlinktransmission is carried in a control resource set for which TCIindication in downlink control information is not enabled, and the beamthat is determined corresponds to a beam used to receive asynchronization signal block in an initial access procedure. In a fourthaspect, alone or in combination with one or more of the first throughthird aspects, process 400 further includes receiving (e.g., usingantenna 252, DEMOD 254, MIMO detector 256, receive processor 258,controller/processor 280, reception module 604, and/or the like) theindication of the activated TCI state, and determining (e.g., usingreceive processor 258, transmit processor 264, controller/processor 280,memory 282, determination module 606, and/or the like) another beam thatcorresponds to a beam used to monitor the control resource set. In afifth aspect, alone or in combination with one or more of the firstthrough fourth aspects, the time offset is greater than a thresholdvalue and the downlink control information that schedules the downlinktransmission is carried in a control resource set for which TCIindication in downlink control information is not enabled, and the beamthat is determined corresponds to a beam used to monitor the controlresource set.

In a sixth aspect, alone or in combination with one or more of the firstthrough fifth aspects, the time offset is greater than a threshold valueand the downlink control information that schedules the downlinktransmission is carried in a control resource set for which TCIindication in downlink control information is enabled, and the beam thatis determined corresponds to a beam used to receive a synchronizationsignal block in an initial access procedure. In a seventh aspect, aloneor in combination with one or more of the first through sixth aspects,the time offset is greater than a threshold value and the downlinkcontrol information that schedules the downlink transmission is carriedin a control resource set for which TCI indication in downlink controlinformation is enabled, and the beam that is determined corresponds to abeam used to monitor the control resource set.

In an eighth aspect, alone or in combination with one or more of thefirst through seventh aspects, the time offset is less than a thresholdvalue, and the beam that is determined corresponds to a beam used toreceive a synchronization signal block in an initial access procedure.In a ninth aspect, alone or in combination with one or more of the firstthrough eighth aspects, process 400 further includes receiving (e.g.,using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258,controller/processor 280, reception module 604, and/or the like) theindication of the activated TCI state, and determining (e.g., usingreceive processor 258, transmit processor 264, controller/processor 280,memory 282, determination module 606, and/or the like) another beam thatcorresponds to a beam used to monitor a control resource set. In a tenthaspect, alone or in combination with one or more of the first throughninth aspects, the control resource set has a lowest identifier amongidentifiers of a plurality of control resource sets in a most recentslot that is monitored. In an eleventh aspect, alone or in combinationwith one or more of the first through tenth aspects, the time offset isless than a threshold value, and the beam that is determined correspondsto a beam used to monitor a control resource set having a lowestidentifier among identifiers of a plurality of control resource setsmonitored.

In a twelfth aspect, alone or in combination with one or more of thefirst through eleventh aspects, process 400 further includes receiving(e.g., using antenna 252, DEMOD 254, MIMO detector 256, receiveprocessor 258, controller/processor 280, reception module 604, and/orthe like) the indication of the activated TCI state in a case where thedownlink control information that schedules the downlink transmission iscarried in a control resource set for which TCI indication in downlinkcontrol information is not enabled, and receiving (e.g., using antenna252, DEMOD 254, MIMO detector 256, receive processor 258,controller/processor 280, reception module 604, and/or the like) theindication of the activated TCI state in a case where the downlinkcontrol information that schedules the downlink transmission is carriedin a control resource set for which TCI indication in downlink controlinformation is enabled. In a thirteenth aspect, alone or in combinationwith one or more of the first through twelfth aspects, the indication ofthe activated TCI state is received with another indication of anotheractivated TCI state for receiving a control transmission, and theactivated TCI state corresponds to the other activated TCI state.

As further shown in FIG. 4 , in some aspects, process 400 may includereceiving the downlink transmission using the beam (block 440). Forexample, the UE (e.g., using antenna 252, DEMOD 254, MIMO detector 256,receive processor 258, controller/processor 280, reception module 604,and/or the like) may receive the downlink transmission using the beam,as described above in connection with FIG. 3 .

Although FIG. 4 shows example blocks of process 400, in some aspects,process 400 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 4 .Additionally, or alternatively, two or more of the blocks of process 400may be performed in parallel.

FIG. 5 is a diagram illustrating an example process 500 performed, forexample, by a BS, in accordance with various aspects of the presentdisclosure. Example process 500 is an example where a BS (e.g., BS 110and/or the like) performs operations associated with beam determinationprior to an indication of an activated beam.

As shown in FIG. 5 , in some aspects, process 500 may includetransmitting a configuration for one or more TCI states (block 510). Forexample, the BS (e.g., using controller/processor 240, transmitprocessor 220, TX MIMO processor 230, MOD 232, antenna 234, transmissionmodule 804, and/or the like) may transmit a configuration for one ormore TCI states, as described above in connection with FIG. 3 .

As further shown in FIG. 5 , in some aspects, process 500 may includetransmitting downlink control information that schedules a downlinktransmission after a time offset (block 520). For example, the BS (e.g.,using controller/processor 240, transmit processor 220, TX MIMOprocessor 230, MOD 232, antenna 234, transmission module 804, and/or thelike) may transmit downlink control information that schedules adownlink transmission after a time offset, as described above inconnection with FIG. 3 . In a first aspect, the downlink transmission iscarried in a physical downlink shared channel for data. In a secondaspect, alone or in combination with the first aspect, the time offsetis an interval between a first time when the downlink controlinformation that schedules the downlink transmission is received by theUE and a second time when the downlink transmission is scheduled.

As further shown in FIG. 5 , in some aspects, process 500 may includedetermining, prior to transmitting an indication of an activated TCIstate of the one or more TCI states, a beam for transmitting thedownlink transmission (block 530). For example, the BS (e.g., usingcontroller/processor 240, determination module 806, and/or the like) maydetermine, prior to transmitting an indication of an activated TCI stateof the one or more TCI states, a beam for transmitting the downlinktransmission, as described above in connection with FIG. 3 .

In a third aspect, alone or in combination with one or more of the firstand second aspects, the time offset is greater than a threshold valueand the downlink control information that schedules the downlinktransmission is carried in a control resource set for which TCIindication in downlink control information is not enabled, and the beamthat is determined corresponds to a beam used to transmit asynchronization signal block in an initial access procedure. In a fourthaspect, alone or in combination with one or more of the first throughthird aspects, process 500 further includes transmitting (e.g., usingcontroller/processor 240, transmit processor 220, TX MIMO processor 230,MOD 232, antenna 234, transmission module 804, and/or the like) theindication of the activated TCI state, and determining (e.g., usingtransmit processor 220, receive processor 238, controller/processor 240,memory 242, determination module 806, and/or the like) another beam thatcorresponds to a beam used to transmit the downlink control information.In a fifth aspect, alone or in combination with one or more of the firstthrough fourth aspects, the time offset is greater than a thresholdvalue and the downlink control information that schedules the downlinktransmission is carried in a control resource set for which TCIindication in downlink control information is not enabled, and the beamthat is determined corresponds to a beam used to transmit the downlinkcontrol information.

In a sixth aspect, alone or in combination with one or more of the firstthrough fifth aspects, the time offset is greater than a threshold valueand the downlink control information that schedules the downlinktransmission is carried in a control resource set for which TCIindication in downlink control information is enabled, and the beam thatis determined corresponds to a beam used to transmit a synchronizationsignal block in an initial access procedure. In a seventh aspect, aloneor in combination with one or more of the first through sixth aspects,the time offset is greater than a threshold value and the downlinkcontrol information that schedules the downlink transmission is carriedin a control resource set for which TCI indication in downlink controlinformation is enabled, and the beam that is determined corresponds to abeam used to transmit the downlink control information.

In an eighth aspect, alone or in combination with one or more of thefirst through seventh aspects, the time offset is less than a thresholdvalue, and the beam that is determined corresponds to a beam used totransmit a synchronization signal block in an initial access procedure.In a ninth aspect, alone or in combination with one or more of the firstthrough eighth aspects, process 500 further includes transmitting (e.g.,using controller/processor 240, transmit processor 220, TX MIMOprocessor 230, MOD 232, antenna 234, transmission module 804, and/or thelike) the indication of the activated TCI state, and determining anotherbeam based at least in part on a control resource set. In a tenthaspect, alone or in combination with one or more of the first throughninth aspects, the control resource set has a lowest identifier amongidentifiers of a plurality of control resource sets in a most recentslot that is monitored by a UE. In an eleventh aspect, alone or incombination with one or more of the first through tenth aspects, thetime offset is less than a threshold value, and the beam is determinedbased at least in part on a control resource set having a lowestidentifier among identifiers of a plurality of control resource setsmonitored by a UE.

In a twelfth aspect, alone or in combination with one or more of thefirst through eleventh aspects, process 500 further includestransmitting (e.g., using controller/processor 240, transmit processor220, TX MIMO processor 230, MOD 232, antenna 234, transmission module804, and/or the like) the indication of the activated TCI state in acase where the downlink control information that schedules the downlinktransmission is carried in a control resource set for which TCIindication in downlink control information is not enabled, andtransmitting (e.g., using controller/processor 240, transmit processor220, TX MIMO processor 230, MOD 232, antenna 234, transmission module804, and/or the like) the indication of the activated TCI state in acase where the downlink control information that schedules the downlinktransmission is carried in a control resource set for which TCIindication in downlink control information is enabled. In a thirteenthaspect, alone or in combination with one or more of the first throughtwelfth aspects, the indication of the activated TCI state istransmitted with another indication of another activated TCI state for acontrol transmission, and the activated TCI state corresponds to theother activated TCI state.

As further shown in FIG. 5 , in some aspects, process 500 may includetransmitting the downlink transmission using the beam (block 540). Forexample, the BS (e.g., using controller/processor 240, transmitprocessor 220, TX MIMO processor 230, MOD 232, antenna 234, transmissionmodule 804, and/or the like) may transmit the downlink transmissionusing the beam, as described above in connection with FIG. 3 .

Although FIG. 5 shows example blocks of process 500, in some aspects,process 500 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 5 .Additionally, or alternatively, two or more of the blocks of process 500may be performed in parallel.

FIG. 6 is a conceptual data flow diagram illustrating an example 600 ofa data flow between different modules/means/components in an exampleapparatus 602. The apparatus 602 may include, for example, a UE (e.g.,UE 120). In some aspects, the apparatus 602 includes a reception module604, a determination module 606, a transmission module 614, and/or thelike. The reception module 604 and the transmission module 614 may be incommunication with one another (for example, via one or more busesand/or one or more other components). As shown, the apparatus 602 maycommunicate with another apparatus 650 (such as a UE, a base station, oranother wireless communication device) using the reception module 604and the transmission module 614.

In some aspects, the apparatus 602 may be configured to perform one ormore operations described herein in connection with FIG. 3 .Additionally or alternatively, the apparatus 602 may be configured toperform one or more processes described herein, such as process 400 ofFIG. 4 , or a combination thereof. In some aspects, the apparatus 602and/or one or more modules shown in FIG. 6 may include one or morecomponents of the UE described above in connection with FIG. 2 .Additionally, or alternatively, one or more modules shown in FIG. 6 maybe implemented within one or more components described above inconnection with FIG. 2 . Additionally or alternatively, one or moremodules of the set of modules may be implemented at least in part assoftware stored in a memory. For example, a module (or a portion of amodule) may be implemented as instructions or code stored in anon-transitory computer-readable medium and executable by a controlleror a processor to perform the functions or operations of the module.

The reception module 604 may receive communications, such as referencesignals, control information, data communications, or a combinationthereof, from the apparatus 650. The reception module 604 may providereceived communications to one or more other modules of the apparatus602. In some aspects, the reception module 604 may perform signalprocessing on the received communications (such as filtering,amplification, demodulation, analog-to-digital conversion,demultiplexing, deinterleaving, de-mapping, equalization, interferencecancellation, or decoding, among other examples), and may provide theprocessed signals to the one or more other modules of the apparatus 602.In some aspects, the reception module 604 may include one or moreantennas, a demodulator, a MIMO detector, a receive processor, acontroller/processor, a memory, or a combination thereof, of the UEdescribed above in connection with FIG. 2 .

The transmission module 614 may transmit communications, such asreference signals, control information, data communications, or acombination thereof, to the apparatus 650. In some aspects, one or moreother modules of the apparatus 602 may generate communications and mayprovide the generated communications to the transmission module 614 fortransmission to the apparatus 650. In some aspects, the transmissionmodule 614 may perform signal processing on the generated communications(such as filtering, amplification, modulation, digital-to-analogconversion, multiplexing, interleaving, mapping, or encoding, amongother examples), and may transmit the processed signals to the apparatus650. In some aspects, the transmission module 614 may include one ormore antennas, a modulator, a transmit MIMO processor, a transmitprocessor, a controller/processor, a memory, or a combination thereof,of the UE described above in connection with FIG. 2 . In some aspects,the transmission module 614 may be co-located with the reception module604 in a transceiver.

In some aspects, the reception module 604 may receive, as data 608, aconfiguration for one or more TCI states. Additionally, oralternatively, the reception module 604 may receive, as data 608,control information that schedules a downlink transmission after a timeoffset. The reception module 604 may provide information regarding theconfiguration and/or the control information to the determination module606 as data 610. The determination module 606 may determine, prior toreceiving an indication of an activated TCI state of the one or more TCIstates (e.g., prior to the reception module 604 receiving, as data 608,an indication of an activated TCI state of the one or more TCI states),a beam for receiving the downlink transmission. The determination module606 may provide information regarding the beam to the reception module604 as data 612. The reception module 604 may receive, as data 608, thedownlink transmission using the beam to thereby communicate with anapparatus 650 (e.g., a base station) prior to activation of a TCI statefor communications with the apparatus 650.

In some aspects, the time offset is greater than a threshold value andthe control information that schedules the downlink transmission iscarried in a control resource set for which TCI indication in controlinformation is enabled. In some aspects, the beam that is determinedcorresponds to a beam used to transmit a synchronization signal block inan initial access procedure.

The apparatus 602 may include additional modules that perform each ofthe blocks of the aforementioned process 400 of FIG. 4 and/or the like.Each block in the aforementioned process 400 of FIG. 4 , and/or thelike, may be performed by a module, and the apparatus 602 may includeone or more of those modules. The modules may be one or more hardwarecomponents specifically configured to carry out the stated processes,implemented by a processor configured to perform the stated processes,stored within a computer-readable medium for implementation by aprocessor, or some combination thereof.

The number and arrangement of modules shown in FIG. 6 are provided as anexample. In practice, there may be additional modules, fewer modules,different modules, or differently arranged modules than those shown inFIG. 6 . Furthermore, two or more modules shown in FIG. 6 may beimplemented within a single module, or a single module shown in FIG. 6may be implemented as multiple, distributed modules. Additionally, oralternatively, a set of modules (e.g., one or more modules) shown inFIG. 6 may perform one or more functions described as being performed byanother set of modules shown in FIG. 6 .

FIG. 7 is a diagram 700 illustrating an example of a hardwareimplementation for an apparatus 602′ employing a processing system 702.The apparatus 602′ may be a UE (e.g., UE 120).

The processing system 702 may be implemented with a bus architecture,represented generally by the bus 704. The bus 704 may include any numberof interconnecting buses and bridges, depending on the specificapplication of the processing system 702 and the overall designconstraints. The bus 704 links together various circuits including oneor more processors and/or hardware modules, represented by the processor706, the modules 604, 606, and/or 614, and the (non-transitory)computer-readable medium/memory 708. The bus 704 may also link variousother circuits such as timing sources, peripherals, voltage regulators,and power management circuits, which are well known in the art, andtherefore will not be described any further.

The processing system 702 may be coupled to a transceiver 710. Thetransceiver 710 is coupled to one or more antennas 712. The transceiver710 provides a means for communicating with various other apparatusesover a transmission medium. For example, the transceiver 710 receives asignal from the one or more antennas 712, extracts information from thereceived signal, and provides the extracted information to theprocessing system 702, specifically the reception module 604. As anotherexample, the transceiver 710 receives information from the processingsystem 702, specifically the transmission module 614, and based at leastin part on the received information, generates a signal to be applied tothe one or more antennas 712. The processing system 702 includes aprocessor 706 coupled to a computer-readable medium/memory 708. Theprocessor 706 is responsible for general processing, including theexecution of software stored on the computer-readable medium/memory 708.The software, when executed by the processor 706, causes the processingsystem 702 to perform the various functions described herein for anyparticular apparatus. The computer-readable medium/memory 708 may alsobe used for storing data that is manipulated by the processor 706 whenexecuting software. The processing system further includes at least oneof the modules 604, 606, 614, and/or the like. The modules may besoftware modules running in the processor 706, resident/stored in thecomputer readable medium/memory 708, one or more hardware modulescoupled to the processor 706, or some combination thereof. Theprocessing system 702 may be a component of the UE 120 and may includethe memory 282 and/or at least one of the TX MIMO processor 266, thereceive processor 258, and/or the controller/processor 280.

In some aspects, the apparatus 602/602′ for wireless communicationincludes means for receiving a configuration for one or more TCI states,means for receiving control information that schedules a downlinktransmission after a time offset, means for determining, prior toreceiving an indication of an activated TCI state of the one or more TCIstates, a beam for receiving the downlink transmission, means forreceiving the downlink transmission using the beam, and/or the like. Theaforementioned means may be one or more of the aforementioned modules ofthe apparatus 602 and/or the processing system 702 of the apparatus 602′configured to perform the functions recited by the aforementioned means.

FIG. 7 is provided as an example. Other examples may differ from what isdescribed in connection with FIG. 7 .

FIG. 8 is a conceptual data flow diagram illustrating an example 800 ofa data flow between different modules/means/components in an exampleapparatus 802. The apparatus 802 may include, for example, a BS (e.g.,BS 110). In some aspects, the apparatus 802 includes a transmissionmodule 804, a determination module 806, a reception module 814, and/orthe like. The reception module 814 and the transmission module 804 maybe in communication with one another (for example, via one or more busesand/or one or more other components). As shown, the apparatus 802 maycommunicate with another apparatus 850 (such as a UE, a base station, oranother wireless communication device) using the reception module 814and the transmission module 804.

In some aspects, the apparatus 802 may be configured to perform one ormore operations described herein in connection with FIG. 3 .Additionally or alternatively, the apparatus 802 may be configured toperform one or more processes described herein, such as process 500 ofFIG. 5 , or a combination thereof. In some aspects, the apparatus 802and/or one or more modules shown in FIG. 8 may include one or morecomponents of the UE described above in connection with FIG. 2 .Additionally, or alternatively, one or more modules shown in FIG. 8 maybe implemented within one or more components described above inconnection with FIG. 2 . Additionally or alternatively, one or moremodules of the set of modules may be implemented at least in part assoftware stored in a memory. For example, a module (or a portion of amodule) may be implemented as instructions or code stored in anon-transitory computer-readable medium and executable by a controlleror a processor to perform the functions or operations of the module.

The reception module 814 may receive communications, such as referencesignals, control information, data communications, or a combinationthereof, from the apparatus 850. The reception module 814 may providereceived communications to one or more other modules of the apparatus802. In some aspects, the reception module 814 may perform signalprocessing on the received communications (such as filtering,amplification, demodulation, analog-to-digital conversion,demultiplexing, deinterleaving, de-mapping, equalization, interferencecancellation, or decoding, among other examples), and may provide theprocessed signals to the one or more other modules of the apparatus 802.In some aspects, the reception module 814 may include one or moreantennas, a demodulator, a MIMO detector, a receive processor, acontroller/processor, a memory, or a combination thereof, of the UEdescribed above in connection with FIG. 2 .

The transmission module 804 may transmit communications, such asreference signals, control information, data communications, or acombination thereof, to the apparatus 850. In some aspects, one or moreother modules of the apparatus 802 may generate communications and mayprovide the generated communications to the transmission module 804 fortransmission to the apparatus 850. In some aspects, the transmissionmodule 804 may perform signal processing on the generated communications(such as filtering, amplification, modulation, digital-to-analogconversion, multiplexing, interleaving, mapping, or encoding, amongother examples), and may transmit the processed signals to the apparatus850. In some aspects, the transmission module 804 may include one ormore antennas, a modulator, a transmit MIMO processor, a transmitprocessor, a controller/processor, a memory, or a combination thereof,of the UE described above in connection with FIG. 2 . In some aspects,the transmission module 804 may be co-located with the reception module814 in a transceiver.

In some aspects, the transmission module 804 may transmit, as data 808,a configuration for one or more TCI states. Additionally, oralternatively, the transmission module 804 may transmit, as data 808,control information that schedules a downlink transmission after a timeoffset. The transmission module 804 may provide information regardingthe configuration and/or the control information to the determinationmodule 806 as data 810. The determination module 806 may determine,prior to transmitting an indication of an activated TCI state of the oneor more TCI states (e.g., prior to the transmission module 804transmitting, as data 808, an indication of an activated TCI state ofthe one or more TCI states), a beam for transmitting the downlinktransmission. The determination module 806 may provide informationregarding the beam to the transmission module 804 as data 812. Thetransmission module 804 may transmit, as data 808, the downlinktransmission using the beam to thereby communicate with an apparatus 850(e.g., a UE) prior to activation of a TCI state for communications withthe apparatus 850.

In some aspects, the time offset is greater than a threshold value andthe control information that schedules the downlink transmission iscarried in a control resource set for which TCI indication in controlinformation is enabled. In some aspects, the beam that is determinedcorresponds to a beam used to transmit a synchronization signal block inan initial access procedure.

The apparatus 802 may include additional modules that perform each ofthe blocks of the aforementioned process 500 of FIG. 5 and/or the like.Each block in the aforementioned process 500 of FIG. 5 , and/or thelike, may be performed by a module, and the apparatus 802 may includeone or more of those modules. The modules may be one or more hardwarecomponents specifically configured to carry out the stated processes,implemented by a processor configured to perform the stated processes,stored within a computer-readable medium for implementation by aprocessor, or some combination thereof.

The number and arrangement of modules shown in FIG. 8 are provided as anexample. In practice, there may be additional modules, fewer modules,different modules, or differently arranged modules than those shown inFIG. 8 . Furthermore, two or more modules shown in FIG. 8 may beimplemented within a single module, or a single module shown in FIG. 8may be implemented as multiple, distributed modules. Additionally, oralternatively, a set of modules (e.g., one or more modules) shown inFIG. 8 may perform one or more functions described as being performed byanother set of modules shown in FIG. 8 .

FIG. 9 is a diagram 900 illustrating an example of a hardwareimplementation for an apparatus 802′ employing a processing system 902.The apparatus 802′ may be a BS (e.g., BS 110).

The processing system 902 may be implemented with a bus architecture,represented generally by the bus 904. The bus 904 may include any numberof interconnecting buses and bridges depending on the specificapplication of the processing system 902 and the overall designconstraints. The bus 904 links together various circuits including oneor more processors and/or hardware modules, represented by the processor906, the modules 804, 806, and/or 814 and the computer-readablemedium/memory 908. The bus 904 may also link various other circuits suchas timing sources, peripherals, voltage regulators, and power managementcircuits, which are well known in the art, and therefore, will not bedescribed any further.

The processing system 902 may be coupled to a transceiver 910. Thetransceiver 910 is coupled to one or more antennas 912. The transceiver910 provides a means for communicating with various other apparatusesover a transmission medium. For example, the transceiver 910 receivesinformation from the processing system 902, specifically thetransmission module 804, and based at least in part on the receivedinformation, generates a signal to be applied to the one or moreantennas 912. As another example, the transceiver 910 receives a signalfrom the one or more antennas 912, extracts information from thereceived signal, and provides the extracted information to theprocessing system 902, specifically the reception module 814. Theprocessing system 902 includes a processor 906 coupled to acomputer-readable medium/memory 908. The processor 906 is responsiblefor general processing, including the execution of software stored onthe computer-readable medium/memory 908. The software, when executed bythe processor 906, causes the processing system 902 to perform thevarious functions described herein for any particular apparatus. Thecomputer-readable medium/memory 908 may also be used for storing datathat is manipulated by the processor 906 when executing software. Theprocessing system further includes at least one of the modules 804, 806,814, and/or the like. The modules may be software modules running in theprocessor 906, resident/stored in the computer readable medium/memory908, one or more hardware modules coupled to the processor 906, or somecombination thereof. The processing system 902 may be a component of theBS 110 and may include the memory 242 and/or at least one of the TX MIMOprocessor 230, the receive processor 238, and/or thecontroller/processor 240.

In some aspects, the apparatus 802/802′ for wireless communicationincludes means for transmitting a configuration for one or more TCIstates, means for transmitting control information that schedules adownlink transmission after a time offset, means for determining, priorto transmitting an indication of an activated TCI state of the one ormore TCI states, a beam for transmitting the downlink transmission,means for transmitting the downlink transmission using the beam, and/orthe like. The aforementioned means may be one or more of theaforementioned modules of the apparatus 802 and/or the processing system902 of the apparatus 802′ configured to perform the functions recited bythe aforementioned means.

FIG. 9 is provided as an example. Other examples may differ from what isdescribed in connection with FIG. 9 .

FIG. 10 is a diagram illustrating an example 1000 of beam groupmeasurement reporting, in accordance with various aspects of the presentdisclosure. As shown in FIG. 10 , example 1000 may include a BS 110 anda UE 120 that communicate with one another.

As shown by reference number 1005, the BS 110 may transmit, and the UE120 may receive, a reporting configuration (e.g., a CSI-ReportConfig)indicating that the UE 120 is to reportsignal-to-interference-plus-noise ratio (SINR) measurements. Forexample, the reporting configuration may include a reporting metricparameter (e.g., the higher-layer parameter report Quantity) thatidentifies SINR as the reporting metric of the reporting configuration(e.g., the reportQuantity parameter is set to cri-SINR orssb-Index-SINR). In some aspects, the reporting configuration, oranother configuration transmitted by the BS 110, may indicate thatmeasurement reporting for a group of beams is enabled for the UE 120(e.g., the higher-layer parameter groupBasedBeamReporting may beenabled).

As shown by reference number 1010, the UE 120 may determine (e.g.,obtain) respective SINR measurements for a group of beams. For example,the UE 120 may determine respective layer 1 (L1) SINR (L1-SINR)measurements for the group of beams. The group of beams may include twoor more beams on which the UE 120 may perform simultaneous (e.g.,concurrent) transmission or reception. For example, the group of beamsmay include two or more beams on which the UE 120 may simultaneouslyreceive channel state information reference signal (CSI-RS) resources,SSB resources, and/or the like.

As shown by reference number 1015, the UE 120 may transmit, and the BS110 may receive, a report (e.g., a measurement report) for the group ofbeams that identifies the respective SINR measurements. In some aspects,the report may identify values for each of the respective SINRmeasurements. In some aspects, the values may represent actual SINRmeasurements for the group of beams. In some aspects, a value that isindicated in the report may be a quantized value (e.g., according to amapping of quantized values to SINR measurement values).

In some aspects, the report may identify a value of a largest (or asmallest) SINR measurement of the respective SINR measurements. In thiscase, the value of the largest SINR measurement may represent an actualSINR measurement for a beam of the group of beams, and the value may bea quantized value, as described above. Additionally, the report mayidentify respective differential values, relative to the value of thelargest SINR measurement, for a remainder of the respective SINRmeasurements (e.g., the respective SINR measurements other than thelargest SINR measurement). A differential value for a particular SINRmeasurement may represent a difference between the largest SINRmeasurement and the particular SINR measurement. In some aspects, thedifferential value may be a quantized value (e.g., according to amapping of quantized values to differential values), as described above.

As indicated above, FIG. 10 is provided as an example. Other examplesmay differ from what is described with respect to FIG. 10 .

FIG. 11 is a diagram illustrating an example process 1100 performed, forexample, by a UE, in accordance with various aspects of the presentdisclosure. Example process 1100 is an example where a UE (e.g., UE 120and/or the like) performs operations associated with beam groupmeasurement reporting.

As shown in FIG. 11 , in some aspects, process 1100 may includedetermining respective signal-to-interference-plus-noise ratio (SINR)measurements for a group of beams (block 1110). For example, the UE(e.g., using antenna 252, DEMOD 254, MIMO detector 256, receiveprocessor 258, controller/processor 280, determination component 1208,and/or the like) may determine respectivesignal-to-interference-plus-noise ratio (SINR) measurements for a groupof beams.

As further shown in FIG. 11 , in some aspects, process 1100 may includetransmitting a measurement report for the group of beams that identifiesthe respective SINR measurements (block 1120). For example, the UE(e.g., using controller/processor 280, transmit processor 264, TX MIMOprocessor 266, MOD 254, antenna 252, transmission component 1204, and/orthe like) may transmit a measurement report for the group of beams thatidentifies the respective SINR measurements.

In a first aspect, the measurement report identifies a value of alargest SINR measurement, of the respective SINR measurements, andrespective differential values, relative to the value of the largestSINR measurement, for a remainder of the respective SINR measurements.

In a second aspect, alone or in combination with the first aspect, themeasurement report identifies a value for each of the respective SINRmeasurements.

In a third aspect, alone or in combination with one or more of the firstand second aspects, the UE is to perform simultaneous transmission orreception of multiple communications using the group of beams.

Although FIG. 11 shows example blocks of process 1100, in some aspects,process 1100 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 11 .Additionally, or alternatively, two or more of the blocks of process1100 may be performed in parallel.

FIG. 12 is a block diagram of an example apparatus 1200 for wirelesscommunication. The apparatus 1200 may be a UE, or a UE may include theapparatus 1200. In some aspects, the apparatus 1200 includes a receptioncomponent 1202 and a transmission component 1204, which may be incommunication with one another (for example, via one or more busesand/or one or more other components). As shown, the apparatus 1200 maycommunicate with another apparatus 1206 (such as a UE, a base station,or another wireless communication device) using the reception component1202 and the transmission component 1204. As further shown, theapparatus 1200 may include a determination component 1208, among otherexamples.

In some aspects, the apparatus 1200 may be configured to perform one ormore operations described herein in connection with FIG. 10 .Additionally, or alternatively, the apparatus 1200 may be configured toperform one or more processes described herein, such as process 1100 ofFIG. 11 , or a combination thereof. In some aspects, the apparatus 1200and/or one or more components shown in FIG. 12 may include one or morecomponents of the UE described above in connection with FIG. 2 .Additionally, or alternatively, one or more components shown in FIG. 12may be implemented within one or more components described above inconnection with FIG. 2 . Additionally, or alternatively, one or morecomponents of the set of components may be implemented at least in partas software stored in a memory. For example, a component (or a portionof a component) may be implemented as instructions or code stored in anon-transitory computer-readable medium and executable by a controlleror a processor to perform the functions or operations of the component.

The reception component 1202 may receive communications, such asreference signals, control information, data communications, or acombination thereof, from the apparatus 1206. The reception component1202 may provide received communications to one or more other componentsof the apparatus 1200. In some aspects, the reception component 1202 mayperform signal processing on the received communications (such asfiltering, amplification, demodulation, analog-to-digital conversion,demultiplexing, deinterleaving, de-mapping, equalization, interferencecancellation, or decoding, among other examples), and may provide theprocessed signals to the one or more other components of the apparatus1206. In some aspects, the reception component 1202 may include one ormore antennas, a demodulator, a MIMO detector, a receive processor, acontroller/processor, a memory, or a combination thereof, of the UEdescribed above in connection with FIG. 2 .

The transmission component 1204 may transmit communications, such asreference signals, control information, data communications, or acombination thereof, to the apparatus 1206. In some aspects, one or moreother components of the apparatus 1200 may generate communications andmay provide the generated communications to the transmission component1204 for transmission to the apparatus 1206. In some aspects, thetransmission component 1204 may perform signal processing on thegenerated communications (such as filtering, amplification, modulation,digital-to-analog conversion, multiplexing, interleaving, mapping, orencoding, among other examples), and may transmit the processed signalsto the apparatus 1206. In some aspects, the transmission component 1204may include one or more antennas, a modulator, a transmit MIMOprocessor, a transmit processor, a controller/processor, a memory, or acombination thereof, of the UE described above in connection with FIG. 2. In some aspects, the transmission component 1204 may be co-locatedwith the reception component 1202 in a transceiver.

In some aspects, the determination component 1208 may determinerespective SINR measurements for a group of beams. In some aspects, thetransmission component 1204 may transmit a measurement report for thegroup of beams that identifies the respective SINR measurements.

The number and arrangement of components shown in FIG. 12 are providedas an example. In practice, there may be additional components, fewercomponents, different components, or differently arranged componentsthan those shown in FIG. 12 . Furthermore, two or more components shownin FIG. 12 may be implemented within a single component, or a singlecomponent shown in FIG. 12 may be implemented as multiple, distributedcomponents. Additionally or alternatively, a set of (one or more)components shown in FIG. 12 may perform one or more functions describedas being performed by another set of components shown in FIG. 12 .

FIG. 13 is a diagram illustrating an example 1300 of a hardwareimplementation for an apparatus 1305 employing a processing system 1310.The apparatus 1305 may be a UE.

The processing system 1310 may be implemented with a bus architecture,represented generally by the bus 1315. The bus 1315 may include anynumber of interconnecting buses and bridges depending on the specificapplication of the processing system 1310 and the overall designconstraints. The bus 1315 links together various circuits including oneor more processors and/or hardware components, represented by theprocessor 1320, the illustrated components, and the computer-readablemedium/memory 1325. The bus 1315 may also link various other circuits,such as timing sources, peripherals, voltage regulators, powermanagement circuits, and/or the like.

The processing system 1310 may be coupled to a transceiver 1330. Thetransceiver 1330 is coupled to one or more antennas 1335. Thetransceiver 1330 provides a means for communicating with various otherapparatuses over a transmission medium. The transceiver 1330 receives asignal from the one or more antennas 1335, extracts information from thereceived signal, and provides the extracted information to theprocessing system 1310, specifically the reception component 1202. Inaddition, the transceiver 1330 receives information from the processingsystem 1310, specifically the transmission component 1204, and generatesa signal to be applied to the one or more antennas 1335 based at leastin part on the received information.

The processing system 1310 includes a processor 1320 coupled to acomputer-readable medium/memory 1325. The processor 1320 is responsiblefor general processing, including the execution of software stored onthe computer-readable medium/memory 1325. The software, when executed bythe processor 1320, causes the processing system 1310 to perform thevarious functions described herein for any particular apparatus. Thecomputer-readable medium/memory 1325 may also be used for storing datathat is manipulated by the processor 1320 when executing software. Theprocessing system further includes at least one of the illustratedcomponents. The components may be software modules running in theprocessor 1320, resident/stored in the computer readable medium/memory1325, one or more hardware modules coupled to the processor 1320, orsome combination thereof.

In some aspects, the processing system 1310 may be a component of the UE120 and may include the memory 282 and/or at least one of the TX MIMOprocessor 266, the receive (RX) processor 258, and/or thecontroller/processor 280. In some aspects, the apparatus 1305 forwireless communication includes means for determining respective SINRmeasurements for a group of beams, means for transmitting a measurementreport for the group of beams that identifies the respective SINRmeasurements, and/or the like. The aforementioned means may be one ormore of the aforementioned components of the apparatus 1200 and/or theprocessing system 1310 of the apparatus 1305 configured to perform thefunctions recited by the aforementioned means. As described elsewhereherein, the processing system 1310 may include the TX MIMO processor266, the RX processor 258, and/or the controller/processor 280. In oneconfiguration, the aforementioned means may be the TX MIMO processor266, the RX processor 258, and/or the controller/processor 280configured to perform the functions and/or operations recited herein.

FIG. 13 is provided as an example. Other examples may differ from whatis described in connection with FIG. 13 .

FIG. 14 is a diagram illustrating an example process 1400 performed, forexample, by a UE, in accordance with various aspects of the presentdisclosure. Example process 1400 is an example where a UE (e.g., UE 120and/or the like) performs operations associated with receiving CSI inresource sets.

As shown in FIG. 14 , in some aspects, process 1400 may includereceiving a configuration for first non-zero power (NZP) channel stateinformation (CSI) resource sets that are to be used for channelmeasurement, second NZP CSI resource sets that are to be used forinterference measurement, and zero power (ZP) CSI resource sets that areto be used for interference measurement (block 1410). For example, theUE (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receiveprocessor 258, controller/processor 280, and/or the like) may receive aconfiguration for first non-zero power (NZP) channel state information(CSI) resource sets that are to be used for channel measurement, secondNZP CSI resource sets that are to be used for interference measurement,and zero power (ZP) CSI resource sets that are to be used forinterference measurement.

In a first aspect, first NZP CSI resource sets, the second NZP CSIresource sets, and the ZP CSI resource sets have a same quantity ofresource sets.

In a second aspect, alone or in combination with the first aspect, aresource set of the first NZP CSI resource sets includes a differentquantity of resources than a resource set of the second NZP CSI resourcesets or a resource set of the ZP CSI resource sets.

As further shown in FIG. 14 , in some aspects, process 1400 may includereceiving the first NZP CSI in a resource set, of a particular indexlocation, of the first NZP CSI resource sets using a beam (block 1420).For example, the UE (e.g., using receive processor 258, transmitprocessor 264, controller/processor 280, memory 282, and/or the like)may receive the first NZP CSI in a resource set, of a particular indexlocation, of the first NZP CSI resource sets using a beam selectedaccording to a quasi-colocation assumption associated with theparticular index location.

As further shown in FIG. 14 , in some aspects, process 1400 may includereceiving the second NZP CSI in a resource set, of the particular indexlocation, of the second NZP CSI resource sets using the beam (block1430). For example, the UE (e.g., using receive processor 258, transmitprocessor 264, controller/processor 280, memory 282, and/or the like)may receive the second NZP CSI in a resource set, of the particularindex location, of the second NZP CSI resource sets using the beam.

As further shown in FIG. 14 , in some aspects, process 1400 may includereceiving the ZP CSI in a resource set, of the particular indexlocation, of the ZP CSI resource sets using the beam (block 1440). Forexample, the UE (e.g., using receive processor 258, transmit processor264, controller/processor 280, memory 282, and/or the like) may receivethe ZP CSI in a resource set, of the particular index location, of theZP CSI resource sets using the beam.

Although FIG. 14 shows example blocks of process 1400, in some aspects,process 1400 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 14 .Additionally, or alternatively, two or more of the blocks of process1400 may be performed in parallel.

The foregoing disclosure provides illustration and description, but isnot intended to be exhaustive or to limit the aspects to the preciseform disclosed. Modifications and variations may be made in light of theabove disclosure or may be acquired from practice of the aspects.

As used herein, the term “component” is intended to be broadly construedas hardware, firmware, and/or a combination of hardware and software. Asused herein, a processor is implemented in hardware, firmware, and/or acombination of hardware and software.

As used herein, satisfying a threshold may, depending on the context,refer to a value being greater than the threshold, greater than or equalto the threshold, less than the threshold, less than or equal to thethreshold, equal to the threshold, not equal to the threshold, and/orthe like.

It will be apparent that systems and/or methods described herein may beimplemented in different forms of hardware, firmware, and/or acombination of hardware and software. The actual specialized controlhardware or software code used to implement these systems and/or methodsis not limiting of the aspects. Thus, the operation and behavior of thesystems and/or methods were described herein without reference tospecific software code—it being understood that software and hardwarecan be designed to implement the systems and/or methods based, at leastin part, on the description herein.

Even though particular combinations of features are recited in theclaims and/or disclosed in the specification, these combinations are notintended to limit the disclosure of various aspects. In fact, many ofthese features may be combined in ways not specifically recited in theclaims and/or disclosed in the specification. Although each dependentclaim listed below may directly depend on only one claim, the disclosureof various aspects includes each dependent claim in combination withevery other claim in the claim set. A phrase referring to “at least oneof” a list of items refers to any combination of those items, includingsingle members. As an example, “at least one of: a, b, or c” is intendedto cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combinationwith multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c,a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering ofa, b, and c).

No element, act, or instruction used herein should be construed ascritical or essential unless explicitly described as such. Also, as usedherein, the articles “a” and “an” are intended to include one or moreitems, and may be used interchangeably with “one or more.” Furthermore,as used herein, the terms “set” and “group” are intended to include oneor more items (e.g., related items, unrelated items, a combination ofrelated and unrelated items, and/or the like), and may be usedinterchangeably with “one or more.” Where only one item is intended, thephrase “only one” or similar language is used. Also, as used herein, theterms “has,” “have,” “having,” and/or the like are intended to beopen-ended terms. Further, the phrase “based on” is intended to mean“based, at least in part, on” unless explicitly stated otherwise.

What is claimed is:
 1. A user equipment (UE) for wireless communication,comprising: a memory; and one or more processors coupled to the memory,the one or more processors configured to: receive a configuration forone or more transmission configuration indicator (TCI) states; receivedownlink control information, that schedules a downlink transmissionafter a time offset, in a control resource set; prior to receiving anindication of an activated TCI state of the one or more TCI states,determine a beam for receiving the downlink transmission, according toan initial access procedure or the control resource set, based at leastin part on: whether the time offset satisfies a threshold value, andwhether a TCI indication for the control resource set is enabled in thedownlink control information; and receive the downlink transmissionusing the beam.
 2. The UE of claim 1, wherein the downlink transmissionis carried in a physical downlink shared channel for data.
 3. The UE ofclaim 1, wherein the time offset is an interval between a first timewhen the downlink control information that schedules the downlinktransmission is received and a second time when the downlinktransmission is scheduled.
 4. The UE of claim 1, wherein the time offsetis greater than the threshold value and the TCI indication in thedownlink control information is enabled, and wherein the beam that isdetermined corresponds to a beam used to receive a synchronizationsignal block in the initial access procedure.
 5. The UE of claim 1,wherein the threshold value is associated with a beam switching latencyof the UE.
 6. The UE of claim 1, wherein the threshold value isassociated with a time duration for quasi-co-location (QCL).
 7. The UEof claim 1, wherein the indication is an activation command.
 8. The UEof claim 1, wherein the configuration is a higher layer configuration.9. The UE of claim 1, wherein the beam that is determined corresponds toa beam that is quasi-co-located with a beam used to receive asynchronization signal block in the initial access procedure.
 10. The UEof claim 1, wherein, the one or more processors, to determine the beam,are configured to determine the beam based at least in part on aquasi-co-location assumption that follows a synchronization signal blockin the initial access procedure.
 11. The UE of claim 10, wherein thequasi-co-location assumption is that demodulation reference signal(DMRS) ports are quasi-co-located with the synchronization signal blockin the initial access procedure.
 12. A base station for wirelesscommunication, comprising: a memory; and one or more processors coupledto the memory, the one or more processors configured to: transmit, to auser equipment (UE), a configuration for one or more transmissionconfiguration indicator (TCI) states; transmit, to the UE and in acontrol resource set, downlink control information that schedules adownlink transmission after a time offset; prior to transmitting anindication of an activated TCI state of the one or more TCI states tothe UE, determine a beam for transmitting the downlink transmission,according to an initial access procedure or the control resource set,based at least in part on: whether the time offset satisfies a thresholdvalue, and whether a TCI indication for the control resource set isenabled in the downlink control information; and transmit, to the UE,the downlink transmission using the beam.
 13. The base station of claim12, wherein the downlink transmission is carried in a physical downlinkshared channel for data.
 14. The base station of claim 12, wherein thetime offset is an interval between a first time when the downlinkcontrol information that schedules the downlink transmission is receivedand a second time when the downlink transmission is scheduled.
 15. Thebase station of claim 12, wherein the time offset is greater than thethreshold value and the TCI indication in the downlink controlinformation is enabled, and wherein the beam that is determinedcorresponds to a beam used to transmit a synchronization signal block inthe initial access procedure.
 16. The base station of claim 12, whereinthe threshold value is associated with a beam switching latency of theUE.
 17. The base station of claim 12, wherein the indication is anactivation command.
 18. The base station of claim 12, wherein theconfiguration is a higher layer configuration.
 19. The base station ofclaim 12, wherein the beam that is determined corresponds to a beam thatis quasi-co-located with a beam used to receive a synchronization signalblock in the initial access procedure.
 20. A method of wirelesscommunication performed by a user equipment (UE), comprising: receivinga configuration for one or more transmission configuration indicator(TCI) states; receiving downlink control information, that schedules adownlink transmission after a time offset, in a control resource set;prior to receiving an indication of an activated TCI state of the one ormore TCI states, determining a beam for receiving the downlinktransmission, according to an initial access procedure or the controlresource set, based at least in part on: whether the time offsetsatisfies a threshold value, and whether a TCI indication for thecontrol resource set is enabled in the downlink control; and receivingthe downlink transmission using the beam.
 21. The method of claim 20,wherein the downlink transmission is carried in a physical downlinkshared channel for data.
 22. The method of claim 20, wherein the timeoffset is an interval between a first time when the downlink controlinformation that schedules the downlink transmission is received and asecond time when the downlink transmission is scheduled.
 23. The methodof claim 20, wherein the time offset is greater than the threshold valueand the TCI indication in the downlink control information is enabled,and wherein the beam that is determined corresponds to a beam used toreceive a synchronization signal block in the initial access procedure.24. The method of claim 20, wherein the threshold value is associatedwith a beam switching latency of the UE.
 25. The method of claim 20,wherein the threshold value is associated with a time duration forquasi-co-location (QCL).
 26. The method of claim 20, wherein theindication is an activation command.
 27. The method of claim 20, whereinthe configuration is a higher layer configuration.
 28. The method ofclaim 20, wherein the beam that is determined corresponds to a beam thatis quasi-co-located with a beam used to receive a synchronization signalblock in the initial access procedure.
 29. The method of claim 28,wherein determining the beam comprises determining the beam based atleast in part on a quasi-co-location assumption that follows asynchronization signal block in the initial access procedure.
 30. Amethod of wireless communication performed by a base station,comprising: transmitting, to a user equipment (UE), a configuration forone or more transmission configuration indicator (TCI) states;transmitting, to the UE and in a control resource set, downlink controlinformation that schedules a downlink transmission after a time offset;prior to transmitting an indication of an activated TCI state of the oneor more TCI states to the UE, determining a beam for transmitting thedownlink transmission, according to an initial access procedure or thecontrol resource set, based at least in part on: whether the time offsetsatisfies a threshold value, and whether a TCI indication for thecontrol resource set is enabled in the downlink control information; andtransmitting, to the UE, the downlink transmission using the beam.